Match maths
Century Conversion Rate Calculator
How often a batter turns a score past fifty into a hundred, which is the standard measure of going on with it.
Scores between 50 and 99. A hundred is not counted here as well.
Century conversion rate
25.00
of scores past fifty became hundreds
Scores past fifty
24
Hundreds
6
Fifties not converted
18
Beyond the calculator
Crickslab works these numbers out ball by ball while the match is on, so nobody is doing arithmetic in the scorebook.
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How this was worked out
- 1Total scores past fifty18 fifties + 6 hundreds = 24
- 2Hundreds as a share6 / 24 x 100 = 25.00
How the number is worked out
The formula
Conversion rate = hundreds / (fifties + hundreds) x 100- hundreds
- Scores of 100 or more.
- fifties
- Scores between 50 and 99. A hundred is not also counted as a fifty here.
The denominator is every score past fifty, so it answers the question: having reached fifty, how often did the batter go on?
A worked example: a career record
A batter has 18 fifties and 6 hundreds.
- 1Scores past fifty18 + 6 = 24
- 2Hundreds as a share6 / 24 x 100 = 25.0 per cent
A conversion rate of 25 per cent, which is one hundred for every three fifties left behind. That is around average for a good batter and well below the very best.
Rules and edge cases
The situations that change the answer, and the ones most calculators get wrong.
A hundred is not also a fifty
Scorecards list fifties and hundreds separately, and a score of 120 appears only as a hundred. If your source counts it as both, the conversion rate comes out too low. Enter the two counts as a scorecard reports them.
Not outs distort it
A batter left unbeaten on 70 when the innings ends never had the chance to convert. A career full of run chases that finish early can show a low conversion rate without saying anything about the batter's appetite.
It means almost nothing in Twenty20
A twenty over innings rarely gives anyone time to reach a hundred, so conversion rate is a multi day and one day measure. Applying it to a Twenty20 record produces a number with no useful meaning.
Small samples swing wildly
With four scores past fifty, one hundred moves the rate by 25 points. Treat anything under about fifteen scores past fifty as a description rather than a measure.
What counts as good
Rough guides for a specialist batter in multi day cricket.
| Conversion rate | Reading |
|---|---|
| Below 20 per cent | Gets in and gets out |
| 20 to 30 per cent | Around average |
| 30 to 40 per cent | Good, goes on regularly |
| Above 40 per cent | Outstanding |
Frequently asked questions
Divide the number of hundreds by the total number of scores past fifty, which is fifties plus hundreds, then multiply by 100.
For players
A career record that keeps itself
Claim a Crickslab player profile and every fifty, hundred and conversion is recorded from the matches you play, across every club and competition.
See player profilesLast reviewed 17 August 2026. Playing conditions change, so if your competition uses a different rule, its regulations take precedence over anything here.